Volcano earthquake report for Monday, 25 May 2026

Quakes detected near: Baluran (2 quakes between mag 2.1-2.2), Bardarbunga (39 quakes between mag 0.0-3.3), Barva (2 quakes between mag 1.9-2.3), Cabalian (1 quake mag 1.9), Churchill (1 quake mag 1.3), Clear Lake (26 quakes between mag 0.4-1.5)
Coso (2 quakes between mag 0.8-1.1), El Chichón (1 quake mag 2.2), El Hierro (1 quake mag 1.9), Eldey (55 quakes between mag 0.3-3.0), Grímsvötn (3 quakes between mag 0.6-1.0), Hrómundartindur (2 quakes between mag 0.3-1.2), Hulubelu (1 quake mag 2.0), Irazu (1 quake mag 1.0), Katmai (1 quake mag 2.0), Kerlingarfjöll (1 quake mag 2.7), Kilauea (2 quakes between mag 1.9-2.2), Kupreanof (2 quakes between mag 1.1-1.1), Lipari (1 quake mag 1.4), Ljósufjöll (3 quakes between mag 0.3-1.2), Loihi (1 quake mag 2.0), Masaya (1 quake mag 3.0), Maunaloa (1 quake mag 2.2), Mayotte Island (1 quake mag 1.4), Nevado del Huila (1 quake mag 3.0), Paluweh (1 quake mag 2.2), Pico (1 quake mag 2.0), Spurr (1 quake mag 1.5), Taranaki (1 quake mag 2.0), Tenerife (4 quakes between mag 0.9-1.3), Tjörnes Fracture Zone (6 quakes between mag 0.4-1.5), Vesuvius (5 quakes between mag 0.1-1.6) (updated 16h50)

Note: Earthquakes within 20 km from and at depths less than 50 km under active volcanoes are reported. The list is not complete because many volcanoes are not monitored and/or seismic data in high resolution is not available publicly.

Volcanoes with recent earthquakes above magnitude 2 or more than 10 quakes are listed below:

Baluran volcano (East Java): 2 earthquakes up to magnitude 2.2

2 earthquakes occurred near (under) the volcano during 7 minutes, the last being recorded quake 23 hours ago. Hypocenter depths ranged between 12.00 and 11.00 km.
Earthquake details:
2.2 quake Kabupaten Situbondo, 19 km northwest of Wongsorejo, Indonesia, May 25, 2026 01:06 am (GMT +7) (6 km W)
2.1 quake Kabupaten Situbondo, 17 km northwest of Wongsorejo, Indonesia, May 25, 2026 01:00 am (GMT +7) (6 km WSW)
All earthquakes at Baluran

Bardarbunga volcano (Iceland): 39 earthquakes up to magnitude 3.3

Possible earthquake swarm: 39 earthquakes occurred near (under) the volcano during 20 hours, the last being recorded quake 57 minutes ago. Hypocenter depths ranged between 12.40 and 0.00 km.
Earthquake details: (only 5 largest)
3.3 quake Northeast, 222 km east of Reykjavik, Capital Region, Iceland, May 25, 2026 03:50 am (Reykjavik time) (5 km E)
2.4 quake 4.2 km ESE of Bárðarbunga May 25, 2026 03:54 am (Universal Time) (4 km ESE)
2.4 quake 6.2 km ESE of Bárðarbunga May 25, 2026 03:51 am (Universal Time) (6 km ESE)
2.3 quake 3.7 km SE of Bárðarbunga May 25, 2026 01:15 pm (Universal Time) (4 km ESE)
2.2 quake 4.7 km ESE of Bárðarbunga May 25, 2026 03:50 am (Universal Time) (4 km E)
All earthquakes at Bardarbunga

Barva volcano (Costa Rica): 2 earthquakes up to magnitude 2.3

2 earthquakes occurred near (under) the volcano during 3 hours, the last being recorded quake 14 hours ago. Hypocenter depths ranged between 26.00 and 3.00 km.
Earthquake details:
2.3 quake Provincia de Heredia, 27 km north of San Jose, Provincia de San Jose, Costa Rica, May 24, 2026 06:25 pm (Costa_Rica time) (8 km NNE)
1.9 quake Provincia de Heredia, 19 km north of San Jose, Provincia de San Jose, Costa Rica, May 24, 2026 09:03 pm (Costa_Rica time) (6 km SE)
All earthquakes at Barva

Clear Lake volcano (California): 26 earthquakes up to magnitude 1.5

Possible earthquake swarm: 26 earthquakes occurred near (under) the volcano during 22 hours, the last being recorded quake 1 hour 10 minutes ago. Hypocenter depths ranged between 4.60 and 0.33 km.
Earthquake details: (only 5 largest)
1.5 quake 26 mi north of Santa Rosa, Sonoma County, California, United States, May 24, 2026 07:09 pm (GMT -7) (18 km S)
1.4 quake 25 mi north of Santa Rosa, Sonoma County, California, United States, May 25, 2026 12:55 am (GMT -7) (19 km S)
1.3 quake 26 mi north of Santa Rosa, Sonoma County, California, United States, May 24, 2026 06:28 pm (GMT -7) (18 km SSW)
1.2 quake Lake County, 28 mi north of Santa Rosa, Sonoma County, California, United States, May 24, 2026 11:07 pm (GMT -7) (15 km S)
1.1 quake 27 mi north of Santa Rosa, Sonoma County, California, United States, May 24, 2026 03:14 pm (GMT -7) (16 km SSW)
All earthquakes at Clear Lake

El Chichón volcano (Southern Mexico): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 11 hours ago. The quake, which might be volcanic in origin, was located at a depth of 3.00 km depth at 1 km distance NNW from the volcano.
Earthquake details:
2.2 quake Estado de Chiapas, 37 km southwest of Teapa, Estado de Tabasco, Mexico, May 24, 2026 11:57 pm (GMT -6) (1 km NNW)
All earthquakes at El Chichón

Eldey volcano (Iceland): 55 earthquakes up to magnitude 3.0

Possible earthquake swarm: 55 earthquakes occurred near (under) the volcano during 20 hours, the last being recorded quake 2 hours ago. Hypocenter depths ranged between 13.70 and 2.60 km.
Earthquake details: (only 5 largest)
3.0 quake Irminger Sea, 27 km southwest of Keflavik, Southern Peninsula, Iceland, May 24, 2026 06:31 pm (Universal Time) (11 km NNE)
2.2 quake 9.9 km NNE of Eldey May 25, 2026 02:26 am (Universal Time) (11 km NNE)
2.2 quake 6.3 km NE of Eldey May 25, 2026 12:51 pm (Universal Time) (8 km NE)
2.0 quake 6.9 km NNE of Eldey May 24, 2026 06:06 pm (Universal Time) (9 km NE)
2.0 quake 7.1 km NNE of Eldey May 25, 2026 12:11 pm (Universal Time) (9 km NE)
All earthquakes at Eldey
Eldey is located at the beginning of the Reykjanes Ridge off the SW tip of Iceland. Its highest elevation is the top of Eldey Island, but most of the volcanic edifice is submerged.

Several eruptions occurred in historic times, last in 1926.

Kerlingarfjöll volcano (Iceland): magnitude 2.7 earthquake

A magnitude 2.7 earthquake occurred at the volcano 13 hours ago. The quake, which might be volcanic in origin, was located at a depth of 0 km depth at 14 km distance S from the volcano.
Earthquake details:
2.7 quake Iceland: 38.8 km N of Sigöldustöð May 25, 2026 03:50 am (Reykjavik time) (14 km S)
All earthquakes at Kerlingarfjöll

Kilauea volcano (Hawai'i (Big Island)): 2 earthquakes up to magnitude 2.2

2 earthquakes occurred near (under) the volcano during 11 hours, the last being recorded quake 6 hours ago. Hypocenter depths ranged between 30.01 and 29.24 km.
Earthquake details:
2.2 quake 8 mi northeast of Pāhala, Hawaii County, Hawaii, United States, May 24, 2026 01:16 pm (GMT -10) (18 km SW)
1.9 quake 36 mi southwest of Hilo, Hawaii County, Hawaii, United States, May 25, 2026 12:35 am (GMT -10) (16 km SSW)
All earthquakes at Kilauea

Masaya volcano (Nicaragua): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 9 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 14 km distance NNW from the volcano.
Earthquake details:
Reported seismic-like event (likely no quake): 7.1 km southeast of Managua, Departamento de Managua, Nicaragua, May 25, 2026 02:17 am (GMT -6) (14 km NNW)
All earthquakes at Masaya

Maunaloa volcano (Hawai'i (Big Island)): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 14 hours ago. The quake, which might be volcanic in origin, was located at a depth of 0.24 km depth at 17 km distance E from the volcano.
Earthquake details:
2.2 quake 29 mi southwest of Hilo, Hawaii County, Hawaii, United States, May 24, 2026 04:58 pm (GMT -10) (17 km E)
All earthquakes at Maunaloa

Nevado del Huila volcano (Colombia): magnitude 3.0 earthquake

A magnitude 3.0 earthquake occurred at the volcano 15 hours ago. The quake, which might be volcanic in origin, was located at a depth of 9.50 km depth at 16 km distance SSW from the volcano.
Earthquake details:
3.0 quake 19 km northwest of Belalcazar, Departamento del Cauca, Colombia, May 24, 2026 09:14 pm (GMT -5) (16 km SSW)
All earthquakes at Nevado del Huila

Paluweh volcano (Lesser Sunda Islands): magnitude 2.2 earthquake

A magnitude 2.2 earthquake occurred at the volcano 14 hours ago. The quake, which might be volcanic in origin, was located at a depth of 11.00 km depth at 18 km distance ENE from the volcano.
Earthquake details:
2.2 quake Flores Sea, 56 km northwest of Maumere, Indonesia, May 25, 2026 10:28 am (GMT +8) (18 km ENE)
All earthquakes at Paluweh
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